Beyonce Delivers Baby-licious Performance

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Beyonce "bumped" up the volume at the MTV Video Music Awards with a performance of Love on Top.

As a prelude to her big announcement, the Bootylicious singer spoke the words, "I want you to feel the love that's growing inside of me," as she took the stage. She proceeded to rub her stomach area throughout the performance. When the song finished, the pregnant-in-heels star unbuttoned her shimmering Dolce&Gabbana blazer to reveal a growing baby bump in a pair of high-rise "mom slacks."

The first-time mom-to-be announced her pregnancy earlier in the evening to MTV on the black carpet, but much of the live audience likely didn't have access to the popular trending topic by the time news spread on Twitter. Hearing the news for the first time, fans went wild.

Kanye West was next to proud papa Jay-Z and gave him a congratulatory pat. Jay-Z was beaming and gave a salute to the cameras. The MTV Video Music Awards aired live from Los Angeles on Sunday night on MTV.